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In this paper the experimental investigations relating to the performance and emission characteristics of a single cylinder spark ignition engine operating on a newly designed gasoline fuel injection system are described. This gasoline fuel injection system was operated under port and manifold injection configuration by controlling the duration of injection with an analogue based control system, which uses the information corresponding to engine speed and throttle positions. A comparison between the manually controlled fuel injection system with that of the analogue controlled version had indicated that the overall performance of the analogue base fuel injection system is better than that of the manually controlled system fuel injection.